Year	% of GDP
1970	0
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	0
1988	0
1989	0
1990	0
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	0
1999	0
2000	0
2001	0
2002	0
2003	0
2004	0
2005	0
2006	0
2007	0
2008	0
2009	0
2010	0
2011	1.04639366405286
2012	1.53382074369244
2013	1.53112624015148
2014	1.49166899749313
2015	1.39952647080597
2016	1.21630875987527
2017	0.954746498811384
2018	2.73490089102518
2019	2.60000953615501
2020	3.37284254505207
2021	2.81389455122223